Oops! Sorry, Rodney. I didn't mean to be Rude (not that there's anything wrong with that.. hehehe).
I suppose now that you pointed it out, even we lowly working slime at CX are a bit CX-centric. For Baseddude, there really is only one airline in HK, but not for the reasons you might think: CX has afforded me a base at my longtime U.S. base airport of choice, and offers many others should my base preference change.
I am not aware of another HK airline that offers U.S. basing options. If there are, please just chalk it up to Baseddude's ignorance - not arrogance.
Again, sorry for the slight.
baseddude